It is believed the distinctive toilet has now been split up and disposed of, Oxford Crown Court was told previously.
Communities Minister Gordon Lyons said he had concerns but warned Stormont does not have the resources to mitigate all the changes.
The phone call between the Russian and US presidents came as the US pushes for an end to the Russian invasion of Ukraine.
The interim report sets out the areas of focus for its final report which will make recommendations to the Government in the autumn.
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